First time Multi-Family Investment

[John Shmon]

I'm looking into purchasing my first multi unit building.  Ideally, I would like something near San Francisco.  Currently learning how to evaluate a property properly.  Looking in the 1M price point or under which can be difficult in the area.  I've always imagined having an investment property (maybe a duplex or single family) in a nice area with a long term family living in it but the numbers I have looked at make more sense to buy in a not-so-great neighborhood with 4+ units.  Any insight for a first time buyer?  

https://www.zillow.com/savedhomes/for_sale/2097367...

As I'm sure is the case with most people on here, I'm looking for a property that is ready to go and I can generate + revenue from the get-go. Per the apt. building in the link provided, the numbers seem solid to me - please note if I'm missing something.

Appreciate any insight you all can offer.

- John